pool: sync-gate job creation, retry failed payouts; widen nostr relay set

- RebuildJob: no jobs with zero peers or a tip older than 30min;
  mining unsynced produced orphaned blocks and payouts that can
  never be paid (observed in production: 8 orphan 'found blocks')
- payout exec: on SendMoney failure requeue with 60s backoff, up to
  30 attempts, instead of silently forfeiting the payment
- nostr: add oxtr.dev, nos.social, fmt.wiz.biz, current.fyi, nostr.bg
  (12 relays total) for announcement redundancy

(cherry picked from commit f1986cd7e4a6f69469a2256eb96ff03f3f146792)

1 files changed, 3 insertions, 0 deletions

diff --git a/src/main.h b/src/main.h
index c458412..307cee5 100644
--- a/src/main.h
+++ b/src/main.h
@@ -84,6 +84,9 @@ extern int    nMineMode;
 // something a previous session wrote.
 extern bool   fMineModeFromCommandLine;
 extern string strParticipantPool; // participant: pool .btf address
+extern string strPayoutAddress;   // participant: /payoutaddr override (mine without a wallet)
+extern string strPayoutFile;      // participant: /payoutfile address list, rotated per reconnect
+extern int    nHashThreads;       // participant: /hashthreads override (0 = cores-1)
 extern string strPoolName;        // operator: announced pool name
 extern string strPoolDashboardUrl; // operator: optional dashboard URL
 extern double dPoolFeePercent;     // operator: announced fee percent